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Peru Unveils 5,000-Year-Old Astronomical Site at Áspero

The find links early sky-watching to decisions on fishing, trade, resource planning.

Overview

  • Peru’s Culture Ministry and the Caral Archaeological Zone team announced Thursday the identification at Áspero in Supe Puerto of an oval, two-level platform dated to about 2000 BCE and interpreted as an observatory.
  • The structure features a central huanca, a upright stone used to read sun shadows to tell time, with layouts consistent with tracking solar and lunar cycles.
  • Excavation in Sector J1 recorded four construction phases, ending with the space rebuilt as housing, which points to a loss of specialized roles at the site.
  • Researchers say specialists logged the Sun, Moon, and stars to foresee climate shifts and marine cycles that guided fishing, shellfish gathering, and deliveries to inland settlements.
  • A multidisciplinary team is studying orientations, layers, and recovered materials for publication and exhibits, highlighting how this coastal Caral port near pyramids joined observation with ritual and exchange.